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A Model of Polarisation Rotations in Blazars from Kink Instabilities in Relativistic Jets
Open AccessArticle

Modeling the Time-Dependent Polarization of Blazars

1
Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave., Boston, MA 02215, USA
2
Astronomical Institute, St. Petersburg State University, Universitetsky Prospekt, 28, Petrodvorets, 198504 St. Petersburg, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Emmanouil Angelakis, Markus Boettcher and Jose L. Gómez
Galaxies 2017, 5(4), 63; https://doi.org/10.3390/galaxies5040063
Received: 21 September 2017 / Revised: 6 October 2017 / Accepted: 9 October 2017 / Published: 13 October 2017
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
Linear polarization is an extremely valuable observational tool for probing the dynamic physical conditions of blazar jets. Some patterns are seen in the data, suggestive of order that can be explained by shock waves and helical magnetic field components. However, much disorder is apparent, which implies that turbulence plays a major role as well, especially in the fluctuations of flux and polarization, and perhaps particle acceleration. Here, we present some actual flux and polarization versus time data, plus simulations of model jets. We analyze the output of the simulations in a manner that can be compared with observational data. The results suggest that the ratio of turbulent to ordered magnetic fields varies with time. View Full-Text
Keywords: galaxies: active; galaxies: jets; quasars: general; BL Lacertae objects: general galaxies: active; galaxies: jets; quasars: general; BL Lacertae objects: general
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Marscher, A.P.; Jorstad, S.G.; Williamson, K.E. Modeling the Time-Dependent Polarization of Blazars. Galaxies 2017, 5, 63.

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